Which is better for eye protection, circularly polarized light or blue light filtering?

A: The problems they solve are different, so it's not appropriate to simply say which one is better. ① Blue light filtering: For high-energy short-wave blue light at 415-455nm, theoretically, long-term high-dose exposure may affect the retina, but the blue light output of mobile phone screens is already within a safe range. Blue light films usually absorb blue light through dyeing, which can cause the screen to turn yellow, have color distortion and a decrease in light transmittance. ② Circularly polarized light: In response to visual fatigue caused by linearly polarized light on screens, a controlled experiment published in the Chinese Journal of Preventive Medicine in 2009 showed that the temporary decline in vision in the circularly polarized light group was smaller, and there was no significant increase in blinking frequency. Circularly polarized light is achieved through optical structure, without staining, yellowing or affecting color. From" "Without sacrificing picture quality" At this Angle, circularly polarized light is a more scientific direction for eye protection. Woowhead Guanfudun adopts circularized polarized light and the soft light standard is adjusted by its own process. It does not rely on dyeing. SGS measured the light transmittance to be 96.5% and the haze to be 0.4%, and the color reproduction is natural. If you are really concerned about blue light, it is recommended to use the system night view mode instead of the blue light dyeing film.